All answers can be found on the display panel
The rock was, and still is, one of the finest natural fortresses in the land. Its natural moat, impregnably steep sides and strategic location at the confluence of the Rivers Clyde and Leven marking it out as a key strong point, commanding approaches from the sea as well as the vital frontier lands between Highland and Lowland Scotland. The rock last saw military action in World War 2 when its anti aircraft guns were used against Luftwaffe bombers.
Clutha the Purifier
To learn more about the cleansing and purifing goddess after whom the river was named, you've got to read the display panel.
Q1: How many mammals and fish are listed? = B
The Upper Clyde
If you go down to the fence, look upstream. You can see quite an impressive construction.
Q2: When was it completed? Last digit = A
Beyond this construction lies the upper Clyde.
Q3: From there, how many miles is it to Glasgow's city centre? = F
The Lang Dyke
The lined up stone beacons mark the south side of the navigable channel. They follow the line of the "Lang Dyke".
Q4: In which century were they constructed? Second digit = D
Clyde Built
As the Clyde got deeper over the conturies, larger and larger ships could reach Glasgow's growing docks. With the construction of high quality ships, the reputation of Glasgow grew.
Q5: How many shipyards are now left on the Upper Clyde? = E
Q6: Running out of question ideas - lets just say D minus E = C
The cache can be found at N 55° 56.ABC W 004° 33.DEF
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Update 6th September 2022
We had to relocate the location of the cache due to ongoing issues with falling rocks from the castle.
To get to the new final location, please
add 15 to your northing,
and
deduct 150 from your westing.
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Update 31st May 2023
The fence surrounding the castle has now been removed and the original final location is accessible again.